Question

simplify the following (5 +root 7) (2+root 5)

Answer 1

Hey!!!
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$(5 + \sqrt{7} )(2 + \sqrt{5} ) \\ 5(2 + \sqrt{5} ) + \sqrt{7} (2 + \sqrt{5} ) \\ 10 + 5 \sqrt{5} + 2 \sqrt{7} + \sqrt{7 \times 5} \\ 10 + 5 \sqrt{5} + 2 \sqrt{7} + \sqrt{35}$
So,This is the answer
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Hope it helps!!! :)

Answer 2

5(2+√5)+√7(2+√5)
⇒10+5√5+2√7+√35


Hope this helps.